module SessionsHelper
	#
	def log_in(user)
	session[:user_id] = user.id
	end

	#
	def current_user
	@current_user ||= User.find_by(id: session[:user_id])
	end

	#
	def logged_in?
	!current_user.nil?
	end

	#
	def log_out
	session.delete(:user_id)
	@current_user = nil
	end

	#redirect
	def redirect_back_or(default)
	redirect_to(session[:forwarding_url] || default)
	session.delete(:forwarding_url)
	end

	#save url
	def store_location
	session[:forwarding_url] = request.url if request.get?
	end

	def current_user?(user)
	user == current_user
	end
end
